英文關鍵字
adventure
beautiful
beauty
cascade
clean
close
cold
creek
current
ecology
ecosystem
environment
flow
flowing
forest
fresh
freshness
habitat
harmony
landscape
light
moss
natural
nature
outdoor
outdoors
powerful
quiet
rapids
river
rock
rocks
romanticism
running
scenery
scenic
splash
spring
stone
stones
summer
sunny
sunshine
tranquility
transparent
travel
water
waterfall
wave
wild